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Abstract

This paper took a certain expressway as an example to calculate and demonstrate the key indicators for improving speed limits. By calculating the indicators of highway horizontal and vertical planes, lateral force coefficients, stopping sight distance, interchange service areas, and roadside safety net zones, and comparing them with the driving characteristics of vehicles after increasing the speed limit, key control indicators and engineering improvement measures for improving the speed limit of expressways were proposed. Finally, sound references are provided for considering both traffic safety and operational efficiency in expressway construction, and meeting the requirements of highway users.

Publication Date

8-18-2022

DOI

10.14048/j.issn.1671-2579.2022.04.045

First Page

244

Last Page

251

Submission Date

May 2025

Reference

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